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Article

Simplified Method for Night Sky Radiation Analysis in a Cool-Pool System

1Department of Renewable Energies, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran


Sustainable Energy. 2014, Vol. 2 No. 1, 29-34
DOI: 10.12691/rse-2-1-6
Copyright © 2014 Science and Education Publishing

Cite this paper:
Alibakhsh Kasaeian, Mohammad Sameti, Amin Toghi Eshghi. Simplified Method for Night Sky Radiation Analysis in a Cool-Pool System. Sustainable Energy. 2014; 2(1):29-34. doi: 10.12691/rse-2-1-6.

Correspondence to: Alibakhsh  Kasaeian, Department of Renewable Energies, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran. Email: akasa@ut.ac.ir

Abstract

The conventional mechanical building cooling systems are energy demanding equipment. Needing for low-energy consumption systems is a motivation for utilizing ambient energy resources such as ground, ambient air, sky and water as alternative resources. Night sky can be a good candidate as a heat sink to be used in cooling systems. The present study proposes and presents a simplified method for computing net outgoing energy exchanged between night sky and a cool-pool in a building cooling system. Considering a real night condition with a 3 m × 4 m pool and overall energy conversion efficiency of 75%, we obtained that the aforementioned system can replace a 4000 watts swamp cooler works for 6 hours a day.

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